Lead scandium tantalate (PST) is a mixed oxide of lead, scandium, and tantalum.
It is a ceramic material with a perovskite structure,[1] where the Sc and Ta atoms at the B site have an arrangement that is intermediate between ordered and disordered configurations, and can be fine-tuned with thermal treatment.
[2] It is ferroelectric at temperatures below 270 K (−3 °C; 26 °F),[2] and is also piezoelectric.
[3] Like structurally similar lead zirconate titanate and barium strontium titanate, PST can be used for manufacture of uncooled focal plane array infrared imaging sensors for thermal cameras.
[4] This inorganic compound–related article is a stub.